These photos were taken at the Black-Footed Ferret Recovery Program in Colorado. The black-footed ferret is considered to be the rarest mammal in North America. In 1988, the U.S. Fish & Wildlife Service developed the "Black-footed Ferret Recovery...

This photo was taken at Black-Footed Ferret Recovery Program in Colorado. The black-footed ferret is considered to be the rarest mammal in North America. In 1988, the U.S. Fish & Wildlife Service developed the "Black-footed Ferret Recovery Plan"...

This photo was taken at Black-Footed Ferret Recovery Program in Colorado. The black-footed ferret is considered to be the rarest mammal in North America. In 1988, the U.S. Fish & Wildlife Service developed the "Black-footed Ferret Recovery Plan"...

This photo was taken at Black-Footed Ferret Recovery Program in Colorado. The black-footed ferret is considered to be the rarest mammal in North America. In 1988, the U.S. Fish & Wildlife Service developed the "Black-footed Ferret Recovery Plan"...

This photo was taken at Black-Footed Ferret Recovery Program in Colorado. The black-footed ferret is considered to be the rarest mammal in North America. In 1988, the U.S. Fish & Wildlife Service developed the "Black-footed Ferret Recovery Plan"...

This photo was taken at Black-Footed Ferret Recovery Program in Colorado. The black-footed ferret is considered to be the rarest mammal in North America. In 1988, the U.S. Fish & Wildlife Service developed the "Black-footed Ferret Recovery Plan"...